Circuit Breaker Module

Circuit Breaker

I guess that we more often think about our services in “happy path” term, but we underestimate not so happy paths. What if my API is trying to reach another API/system and it is failing constantly? Can I reach it less often in case of timeout? I thought about that in case of a Mule 4 application and I come up with Circuit Breaker pattern. In this article I will briefly introduce the pattern and show you how you use it in your Mule application.

Cache or not to cache

For high-workload application it is important to manage resources efficiently. One of the tricks that can save resource usage is caching. In RESTful services this technic is used in GET methods. However it may by used in other cases when operation of getting particular resource can be reused. In this blog post I will extend previously design rest service by adding caching to two operations. Mule uses Cache Scope component. Apart from describing it I will show you possible obstacles and how to handle them. 

GET an HTTP method for retrieving resources

GET an HTTP method for retrieving resources

This article is an intro into a blog series about HTTP methods usage in RESTful services. As a GET is the most common I will start with it. This method is used for retrieving collection of resources or a single resource. In other words this could be used for searching purposes. However the more advanced search criteria I will describe in next article.

To design a service I will use two most commonly used specifications such as RAML and OpenAPI.

REST service design series

REST service design series

I have deiced to share basic idea about REST service design. During this blog series I will focus on commonly used HTTP verbs and their usage. However more sophisticated will be mentioned as well. In each article I will present concept with practical examples. To design a service I will use RAML and Open API specifications.  Where this would be possible I will also prepare appropriate mule service’s implementation.